Quantitative Determination of Some Essential Oil Components of SelectedArtemisia absinthiumPlants

1995 ◽  
Vol 7 (3) ◽  
pp. 271-277 ◽  
Author(s):  
Stefania Nin ◽  
Paola Arfaioli ◽  
Marinella Bosetto
2005 ◽  
Vol 53 (2) ◽  
pp. 202-206 ◽  
Author(s):  
Nikolaos G. Siatis ◽  
Athanasios C. Kimbaris ◽  
Christos S. Pappas ◽  
Petros A. Tarantilis ◽  
Dimitra J. Daferera ◽  
...  

2000 ◽  
Vol 83 (3) ◽  
pp. 621-626 ◽  
Author(s):  
Rita H Auerbach ◽  
Kenan Dost ◽  
George Davidson

Abstract A supercritical fluid chromatographic method combined with Fourier-transform infrared spectroscopy detection (SFC–FTIR) was developed for determination of varietal differences in essential oil constituents in hops (Humulus lupulus). Infrared spectra (IR) of the major constituents of essential oil of hops were taken as films deposited on AgCl discs and compared with those obtained after chromatographic separation in the IR flow-cell with supercritical carbon dioxide (scCO2). Spectra from AgCl discs were comparable to those in scCO2, but in scCO2 most of the bands appeared approximately 8–10 cm−1 to higher wave numbers. Open-tubular SFC–FTIR analysis of the essential oil of 4 different hop varieties was performed. The SFC–FTIR chromatograms showed differences in the location and relative intensity of the peaks depending on the variety, which was further confirmed by consideration of their FTIR spectra.


Planta Medica ◽  
1989 ◽  
Vol 55 (03) ◽  
pp. 251-253 ◽  
Author(s):  
A. Nishizawa ◽  
G. Honda ◽  
M. Tabata
Keyword(s):  

2019 ◽  
Vol 18 (3) ◽  
pp. 3-15
Author(s):  
Suleyman Kizil ◽  
Ozlem Toncer ◽  
Tahsin Sogut ◽  
Emel Diraz ◽  
Sengul Karaman

The study aimed to determine agronomic characteristics and essential oil components of different basil ecotypes in semi-arid climatic conditions of South Eastern Anatolia, Diyarbakir, Turkey. Two-year harvest data about fresh and dry herb yield, dry leaf yield, essential oil content and its components from the plants of year 2015 and 2016 was analyzed in this study. Essential oil components were detected by gas chromatography/mass spectrometry (GC/MS). The resulting outcomes demonstrated that both ecotypes and harvests had important effects on fresh and dry herb, dry leaf yield and essential oil contents of sweet basil. The highest dry leaf yield was noted from green leafy ecotypes and from second harvest stage. Twenty-three constituents were detected in the essential oil of O. basilicum ecotypes. The main components of basil essential oil were linalool, methyl chavicol, neral, geranial and methyl cinnamate that differed according to ecotypes and harvests during experimental years 2015 and 2016. Purple leafy basil ecotypes were determined as linalool rich, while greenish leaf ecotypes were abundant in methyl chavicol. Silbe – green ecotype contains higher neral and geranial levels than the other ecotypes. It was concluded that basil plant could be grown successfully and harvested two or more times to prefer for maximum dry leaf yield and essential oil contents under semi-arid climatic conditions.


2019 ◽  
Vol 43 (4) ◽  
pp. 395-404 ◽  
Author(s):  
Belgin COŞGE ŞENKAL ◽  
Tansu USKUTOĞLU ◽  
Cüneyt CESUR ◽  
Volkan ÖZAVCI ◽  
Hülya DOĞAN

2016 ◽  
Vol 16 (1) ◽  
pp. 87-94 ◽  
Author(s):  
Laxmi Devkota ◽  
Meena Rajbhandari

Turmeric has been recognized as a pharmaceutical crop. It is valuable primarily for essential oil and curcumin content. Chemical composition of the essential oils obtained from the rhizome of turmeric was determined by GC/MS technique. More than 75 compounds were detected and 67 of them were identified. They accounted for 98.59% of essential oil. The essential oil contained 15 monoterpenes (5.58%), 43 sesquiterpenes (84.37%) and 10 nonterpenic components (8.64%). The major constituents were ß-turmeron, a-turmeron, Epi-a-patschutene, ß-sesquiphellandrene, 1,4-dimethyl-2-isobutylbenzene, (±)-dihydro-ar-turmerone, zingiberene, E-a-atlantone and (-)-caryophyllene oxide. Thin layer chromatographic finger printing and quantitative determination of phenolics in acetone extract of commercially available turmeric samples were carried out using Folin-Ciocalteu colorimetric method. Gallic acid was used as the standard for the estimation of phenolics. All the investigated turmeric extracts contained relatively high amount of phenolics.Nepal Journal of Science and Technology Vol. 16, No.1 (2015) pp. 87-94


Author(s):  
L.A. Timasheva ◽  
◽  
O.A. Pekhova ◽  
I.L. Danilova ◽  
◽  
...  

Author(s):  
Groznov A.A. ◽  
Kachulin V.A. ◽  
Nesterova O.V.

Taking into account the literature data, as well as the research conducted by the authors, the composition of the collection for the prevention of inflammatory periodontal diseases has been developed, which includes medicinal plant raw materials:medicinal pimenta fruits, medicinal sage leaves, yarrow grass, badan rhizomes in a ratio of 1:1:1: 1 by weight. The quantitative ratio of the components is determined in accordance with the results of the evaluation of the antimicrobial effect of the extract from the proposed collection. To confirm the composition of biologically active substances of the collection, pharmacopoeial qualitative reactions to flavonoids and tannins, as well as the TLC method, which allows identifying substances of a polyphenolic nature, are proposed. The quantitative determination of extractive substances, essential oil, tannins, and flavonoids in the studied collection was carried out and the norms of their content were proposed. The definition of commodity characteristics is carried out.


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